Add link builder DSL to write idiomatic Kotlin code

Author: rolandKulcsar

.gitignore

@@ -5,4 +5,5 @@ target/
 *.iml
 .idea
 *.orig
-.springBeans
+.springBeans
+credentials.yml

.travis.yml

@@ -0,0 +1,38 @@
+== Spring HATEOAS CI
+
+Spring HATEOAS uses Concourse as it's CI tool of choice. This provides support for:
+
+* Pipeline against the `master` branch
+* Support for pull requests
+
+=== Creating a pipeline
+
+Using the `fly` command, you can execute a series of commands to create multiple pipelines to manage everything. But
+first, some critical credentials are needed.
+
+Create a `credentials.yml` file like this:
+
+[source,yml]
+----
+github-access-token: <your Personal Access Token from github>
+docker-email: <your docker hub email address>
+docker-username: <your docker hub username>
+docker-password: <your docker hub password>
+artifactory-username: <your artifactory username>
+artifactory-password: <your artifactory encoded password>
+----
+
+WARNING: Do NOT check this file into source control! If you'll check, `credentials.yml` is listed in `.gitignore` to prevent this.
+
+With this in place, run the following `fly` commands to create pipelines:
+
+----
+% fly -t spring-data sp -p spring-hateoas -c ci/pipeline-template.yml -l credentials.yml -v branch=master
+----
+
+With this pipeline in place, you can now activate and expose it:
+
+----
+% fly -t spring-data unpause-pipeline -p spring-hateoas
+% fly -t spring-data expose-pipeline -p spring-hateoas
+----

ci/README.adoc

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+#!/bin/bash
+
+set -euo pipefail
+
+[[ -d $PWD/maven && ! -d $HOME/.m2 ]] && ln -s $PWD/maven $HOME/.m2
+
+spring_hateoas_artifactory=$(pwd)/spring-hateoas-artifactory
+
+rm -rf $HOME/.m2/repository/org/springframework/hateoas 2> /dev/null || :
+
+cd spring-hateoas-github
+
+./mvnw -Pdistribute -Dmaven.test.skip=true clean deploy \
+	-DaltDeploymentRepository=distribution::default::file://${spring_hateoas_artifactory}

ci/build.sh

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+---
+platform: linux
+
+image_resource:
+  type: docker-image
+  source:
+    repository: openjdk
+    tag: 8-jdk
+
+inputs:
+- name: spring-hateoas-github
+
+outputs:
+- name: spring-hateoas-artifactory
+
+caches:
+- path: maven
+
+run:
+  path: spring-hateoas-github/ci/build.sh